Filter bed



NOV. 4, 1930. A EEEEEEE NK 1,780,791

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, FILTER BED Filed March 8, 1929 3 Sheets-Sheet 5 IZ- F A TTORNEYQ?Patented Nov. 4, 1930 i r i 7' I a UNITED ,s ATEs, P TEN rie-7E FILTERBED I Application filed MarchS, 1929. Serial No. 345,291.. v

The main objects of this invention are: y The top is provided withcurved longi- I First, to provide a filter bed for sewage distudinalopenings8 which serve to reduce the posal plants and the like which isof large weight of the members and also to facilitate capacity andeasily cleaned or flushed. uniform firing when the bed members areSecond, to provide a filter bedof this charformed of clay as theypreferably are. ,By

' acter which is economical in its parts, easily thus formng the bedmembers they maybe installed and atthe same time capable of suseconomically formed and-fired witha mini mi i h avy loads. V a mum ofwarpage or distortion and may-have Objects pertaini g to details andeconomies comparatively thin Walls which are, at the a i of my inventionwill definitely appear from same time, capableof sustaining heavyloads.

the description to follow. The invention is Between the rows of thesebed members I defined'in the claims; 7 H arrange a series of alined'channel 'members A structure which embodies-the features of 9 Thesechannel members are open at thetop my invention is clearly illustratedin theacand have curved bottoms 10, the curvature companying drawingIlIl'WllIlCllt 1 'of the bottoms extending well up on thesides U Fig. lis a fragmentary perspectiveiview of a of the channels. This eliminatescorners in a filter embodying the features of my in} the channel andreduces clogging and makes nti n, a it very easy to remove anyobstruction'which Fig. 2 is a fragmentary perspective view ,may occur byflushing. a a

with the wall of the filterfshown in Fig. 1 Upon thesechannel members Iarrange omitted illustrating the relation of the sev grid members 11;consisting of side bars 12 eral parts of the filter bed. V and crossbars 13, these cross and sidebars be- Fig. 3 is a fragmentaryperspective view of ing of substantial depth and the thickness of a oneof the bed members. the sidebars being subtantially the same as .0 Fig.4 is a transverse vertical section that of the upper edges, of the sidewalls of throughthe bed member of Fig. 3. the channel members. The sidebars project Fig. 5 is a perspective view of one of the beyond the endcross bars sothat th end I SS. channel or conduit members. barsofadjacent grid members are spaced Fig. 6 V is a transverse verticalsection substantially the same asiother cross barsof through the channelmember of Fig. 5. j the grids; I g I Fig. 7 is a plan view of one of thegrid mem- The side bars of the channel members are of hers, 7 j I j a Isuch height that when the grids are arranged Fi 8 i n nd view of thegrid member thereon their faces are in substantially the f Fi 7 V i '1plane of the upper edges of the side walls of In the accompanying.drawing 1 represents the bed members 3 and 4. The bed members 3 aconcrete foundation and 2 one of the side and l support the channelmembers laterally Walls ofafilter embodying my invention. On and alsosupport the grid members. I this foundation I laya plurality of bed mem-The end members grid members are bers 3 and 4 arranged in alined rows.These arranged through openings 14 provided 40 bed members are the samein structure except therefor in the side wall 2 of the filter so that.$5 for variations in length. The tops 5 of these the channelsdischargeat the outside of the bed members are of arched cross section.The filter and-also are accessible for flushingor-v bed members arepreferably reinforced by cleaning. V v H I integrally formed verticaland horizontal Thave not illustrated the filtering mate- 45longitudinally disposed partitions 6 and 7 rial asit is arranged uponthe filter bed and taining heavy loads, is of large capacity, thati'syadmits the passage o'fa large amount of liquid, is not likely tobecome clogged and "the channels or conduits may be readily I flushedshould occasion require.

that is, thebed members, channel mem The parts,

and grid members may be readily formed and fired 1 when l'01'n1ed ofearthy material with a minimuna'of distortion or waipa'ge.

To lighten the channel" members and to facilitate firingthechannelmembers are pro vided with longitudinalopenings l fygatthe lower cornersthereof;

I have not attempted to illustrate orielescribe various modifications oradaptations which]: contemplate as' -l-beli'eve this dis closureenablethose skilled the art to embody for adapt my improvements as' n ay'Patentis p 1 v V v 1 a'ifilter; the combination with a formtidationrpr'ovidedwith a;si'd'efwalflatone end th me-, a plurality timemembers dispo a;

. alined r'owsj on said foundation pro villi-adwith transverselyarchedtop'walls, said.

be d mbers being: provided "with integrally armed iongiaiaimudisposedvertical, and:

' i horizontal- '"partition like' reinforcing Qele- .iea widen ertHe'top'edges 01 111 meats; a plurality of channel members open ithe'top arranged in alined :rows between said he'd members and supportedlaterally thereby, the? bottoms of said channels being;

transversely came, the curvature extending a substantial distance thesidewallsj and grid members comprising longitudinal side bars and crossbars disposed in spaced parallel' relation; arranged on v said channelbars between said bed members and supported late erallytherepy, saidside and cross bars being l: deptllf, "the faces "of the I grid membersging substantially in the plane of. V-t'he uppe edges: of the side waneof {the bed memes-re medsiaebareteiaw ub'stantially e "sidewalls" of thechannel,members,, the end. channeland their superimposed grid Inemberrigj arranged throughv 'opemngsprovid ed inertia said sidewall.

a filter, combination: with a foum elation p rovi'dedwith a'si deWa'Ilat-one end thereof} 'apluralitytof bedmembers disposed in alinedrews-on fonndati-onand prd' Vided with transversely arched topwalls, aplurality of channel members open at the top arranged in alined rows 1between said 1 members and supported laterally thereby,;

the bottoms: of said; channelsbeing trans 'versely curved, the curvatureextending a substantial distance into'the side walls-,' and grid 1members eomprisingil ongitudiiialside uberscen prising longitudinal sidebars and barsand cross bars disposed in spaced parallel relationarranged on said channel ears between said bed members and supportedlaterall thereb'- the end channel members and y l their superimposedgridmembersbeing arranged through openlngs provided 'thereio1' 1n saidsidewall. l

3. In a filter,-the combination with a foun- V dation provided with asidewall at one end thereof, a plurality ofbed members-disposedinalined, rows onsaid found tion,aplur'ality I (if-channel members openat the topfarranged in alined rows between said bed members andsupported laterallythereby, and grid mem- V I top"edges of tlieysi'de'walls of the channel members, theiend channel memb ers and theirsuperimposed grid members being arranged v through openingsprovidechthereroriiini said;

sidewall. I A I In a filter; the c0nibi1'rati'on with; a f n at f iY ddith a de W l a n en'dfthereofi; a plnral ityyof bed members; dis;v posedin alinedrows on said folinflation; a plurality of channel membersopenatthetop v p y v sidebars 'b'eingsubstantially the idth oi the cHaving thus: described-my invention what; I-"'c-laiiri asnew desire'tosecure by Letters" arranged in'f 'alin'ed rows" "between; said bed i Imembers and supported laterally thereby; and firid members" comprising{longitudinal side" ars and cross bars disposed in spaced parallelrelation 'arranged on said channel 7 bars between said bed members andsupported 7 laterally thereby, the end channel members andtheir-superimposed" grid f members being arranged through openingsprovided th'erefor ins'aid side Wall", 4 r y *5; In a filter bed, thecombination of a plurality of bed members disposed in alined roiws I r iand provided with transversely arched top walls, said bed'membersbeing'provided-with integrally formed longitudinally disposed verticaland horizontal partition-likeifreinforcing elements, apl urali tyofchannel 1cm,- bers open at the top arranged-in alinge d rj'ows'between said bed mem'bersf and supportedlatorally thereby,- the, bottomsof said channels being transversely curved, the curvaturetending asubstantial distance intothe side wallaan" grid'nieinbers coin-prisinglongitun d rs and Crossbars disposed in spaced parallel rel a arrangedonardena; nel'bars between said-5 bed members-andsupportedlaterallythereby', sai-dfside and cross. bmebeiirgof substantial depth,th rates if thegrid membersbeingiisubstantia y in 1 pla-ne oi 'theupperedges-of the sidew p the ma ners, their" side" lvars 'biirg so stanc thewidtlrof the top efdgeg I I fire? ide wallsorthe-ehannel-memters. f

6. In a filter bed, the combination of a plu rality of bed membersdisposed in alined rows and provided with transversely archedtop walls,said bed members being provided with integrally formed longitudinallydisposed vertical and horizontal partition-like reinforcing elements, aplurality of channel members open at the top arranged in alined rowsbetween said bed members and supported laterally thereby, the bottoms ofsaid channels being transversely curved, the curvature extending asubstantial distance into the side Walls, and grid members comprisinglongitudinal side bars and cross bars disposed in spaced parallelrelation arranged on said channel bars between said bed members andsupported laterally thereby.

7. In a filter bed, the combination of a plurality of bed membersdisposed in alined rows and provided with transversely arched top walls,said bed members being provided with integrally formed longitudinallydisposed vertical and horizontal partition-like reinforcing elements, aplurality of channel members open at the toparranged in alined rowsbetween said bed members and supported laterally thereby, and gridmembers comprising longitudinal side bars and cross bars disposed inspaced parallel relation arranged on said channel barsbetween said bedmembers and supported laterally thereby, said side and cross bars beingof substantial depth, the faces of the grid members being substantiallyin the plane of the upper edges of the sidewalls of the bed members,their side bars being substantially the width of the top edges of theside walls of the channel members.

8. In a filter bed, the combination of a plurality of bed membersdisposed in alined rows and provided with transversely arched top walls,a plurality of channel members open at the top arranged in alined rowsbetween said bed members and supported laterally thereby, the bottoms ofsaid channels being transversely curved, the curvature eX- tending asubstantial distance into the side walls, and grid members comprisinglongitudlnal slde bars and cross bars dlsposed in spa ced parallelrelation arranged on sa1dchannel bars between said bed members andsupthe bed members, their side bars being substantially the width of thetop edges of the side walls of the channel members.

9. In a filter bed, the combination of a plugitudinal side bars andcross bars disposed in walls of the bed members, their side bars beingsubstantially the width of the top edges of the side walls of thechannel members.

Inwitness whereof I have hereunto set my hand.

ANDREW LENDERINK.

